Lock.



\G. LINLAUD.

LOCK.

APPLICATION FILED SEPT.24, 1 917- L3L466..

Patented Apr. 22,1919.

2 SHEETSSHEET I G. LINLAUD.

' LOCK. I APPLICATION HLED SEPT. 24,1917. 1 3U1,466,- Patented Apr. 22, 1919.

I Q 2 SHEETS-SHEET 2.

. N Pg Q L m; NcRRls PEYEHS m. Punmumo wsnmcmm a c i GUILLERIVIO LmLAUn'oF BUENOS AIRES, ARGENTINA.

LOCK.

' Specification of Iretters Patent.

I Patented Apr. 22, 1919.

7 Application filed September 24, 19-17. Serial No. 192,891.

T 0 all whom it may concern:

Be it known that I, GUILLERMO LINLAUD, a citizen of France, residing at Buenos Aires, Argentina, have invented a new and Improved Look, of which the following specification is .a full disclosure.

This invention deals with looks and it proposes certain improvements simplifying the construction thereof and permitting each lock to be individually adjusted or regulated so as to function only through its own ke To enable others skilled in the art so fully to comprehend the underlying features thereof that they may embody the same by the numerous modifications in structure and relation contemplated by this invention, drawings depicting a preferred form have been annexed as a part of this disclosure, and in such drawings, like characters of refergnce denote corresponding parts throughout all the views, of which Figure 1 is a front elevation of the casing with the cover and key-measuring elements removed, showing the locking bolt. Fig. 2 is an elevation showing the inner face of the removed cover with its key-measuring ele ments associated together. Fig. 3 is a section through the removed rear plate of the lock. Fig. 4 is an assembly of the keymeasuring or finding elements with the boltactuating plate removed. Fig. 5 is an elevation and Fig. 6 is a cross-section of the slotted locking element. Fig. 7 is a front elevation and Fig. 8 is a section of the rotary member which carries the tumblers. Fig. 9 is an elevation and Fig. 10 is a section of the cover for the tumbler-carrier; which cover also serves as a bolt-actuator. Fig. 11 is a side elevation of one of the tumblers. Fig. 12 is an outer end elevation of a tumbler. Fig. 13 is an inner end elevation of a tumbler and Fig. 14 is a longitudinal section through the tumbler. Fig. 15 shows a key in cooperative relation with a pair of tumblers. Fig. 16 is a rear elevation showing four tumblers in connection with an operating key. Fig. 17 is a front elevation showing the same tumblers in association with the slotted locking ring. Fig. 18 is a horizontal section through a lock showing the cover with its bolt-throwing stud and a pair of tumblers in operative relation with the locking ring.

The lock comprises 'a suitable casing A formed of side walls A and a rear plate B and a front plate 19. Within this casing, a suitable bolt 21 is arranged to slide, said bolt having a tongue 22 which may be projected for locking purposes and also having a cam 20 which is adapted to cooperate with an actuating lug 9 carried by a rotatable plate or cover 7. This plate is firmly secured to a tumbler-carrier 5 which is arranged -to be rotatably retained within the locking-ring 1 secured firmly to the frontcover plate 19. The tumbler-carrier, together with its cover 7, forms a unit adapted to receive a series of similar tumblers C which are radially movable and project inwardly so as to expose their inner adjustable ends through a central opening D adapted to receive the cam-fins 24 of a key 23. The tumbler-carrier is provided with an annular channel at containing a number of posts 6 for supporting a number of springs s, the free extremities of which enter apertures is in the sides of the tumblers G in such a manner as to urge these tumblers radially inward. The tumblers are slidably arranged in suitable radial slots & provided by the carrier 5 so that their ends may project through registering-slots m in the annular stationary ring 11. provided by the tumbler-lock 1. When these springs s are unrestrained by the opposing action of the key, they have the effect of moving the tumblers C inwardly so that the extremities of the tumblers interlock with the ring 11. and prevent the tumbler-carrier from being rotated by a false key and thus preventing the lu 9 from actuating the bolt 21.

n order that the tumblers may be forced outwardly a sufiicient distance to cause their notches 13 to register with the lockingring a and enable the tumbler-carrier to be rotated by a true key, and in order that the tumblers may be adjusted to fit any desired key; they are provided with adjusting means. Thus, as shown best by Fig. 14:, each tumbler provides a pair of J-shaped contact elements 17 seated in suitable recesses provided by the tumbler. One of each pair of recesses opens toward the rear end of the tumbler and receives a small screw 15 so that, by adjusting the screw 15, the contact element 17 may be positioned to protrude any desired distance from the inner end of the tumbler.

The key 23 is provided with a series of tangential fins 24 which are so cammed as to operate against the contact portions 17 and urge the tumblers into nnlooking. registry with the ring n when the key is inserted,

In order to secure a correct insertion of the key, its end is preferably apertured so that it may be received by a spring-pressed 'pin 0 carried by the rear plate B. The cover m tion that others can; by applying current knowledge; readily adapt'it for va'riotis applications Without omitting certain features that, from the standpoint of the prior art; fairly constitute essential characteristics" of the generic or specific aspects of this invention, and therefore such adaptations sho nld be and are intended to be comprehended within the meaning and range of e uiv-flimsy" of the following claim.

YHeving thus revealed this invention, I

claim as new and desire to secure the followingoombinations of steps and elements, or equivalents thereof, by Letters'Pate'nt of the"; United: States:

In a lock of the nature disclosed, a plurality of tumb1ers;=sai'd= tumblers being prm vided with projecting extremitiesfiend means for adjfiistably positioning said extremities In" witness whereof I lieveherennto' set my hand in the prsence of twowitnesses.

emttsmo-Lmmcn Witnesses":

copies of this patent may minim 31 by addressing tlie' Commissioner of Patents;

' Wuhiniton DZ-GL" e 

